Actor Will Arnett has officially filed for divorce from his estranged wife, comedienne Amy Poehler. The couple split after nine years of marriage in 2012, but the “Arrested Development” star formally …

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Actor Will Arnett has officially filed for divorce from his estranged wife, comedienne Amy Poehler.

The couple split after nine years of marriage in 2012, but the “Arrested Development” star formally filed divorce papers in Los Angeles Superior Court on April 8.

He is requesting joint legal and physical custody and visitation rights of their two young sons, Archie, 5, and 3-year-old Abel.

Since their separation, Arnett his been linked to singer Billy Joel’s ex-wife, Katie Lee, while the “Parks and Recreation” star has been dating comedian Nick Kroll since early 2013.

Comedian Will Arnett has reportedly embarked on a new romance after quietly splitting from celebrity chef Katie Lee earlier this year. The star confirmed his romance with Billy Joel’s former wife in …

(Photo by David Livingston/Getty Images)

Comedian Will Arnett has reportedly embarked on a new romance after quietly splitting from celebrity chef Katie Lee earlier this year.

The star confirmed his romance with Billy Joel’s former wife in August, but he reportedly called it quits with her soon afterwards.

However, it seems Arnett will not be spending the festive season alone after sparking speculation of a new romance with Hollywood producer Erin
David, who he accompanied to Jennifer Aniston’s holiday bash earlier this month.

A source tells Usmagazine.com, “Will and Katie Lee fizzled. He lives in L.A., she lives in NYC.

“(David) produced one of the shows or a film he was in… Will brought her to Jen and Justin (Theroux)’s holiday party.”

The comedian was previously married to actress Amy Poehler, but the couple split last year.

Comedian Will Arnett has reportedly embarked on a new romance with Billy Joel’s ex-wife Katie Lee. The actor split from his actress wife Amy Poehler last year, and in April, he admitted he was not yet …

(Photo by Steve Granitz/WireImage)

Comedian Will Arnett has reportedly embarked on a new romance with Billy Joel’s ex-wife Katie Lee.

The actor split from his actress wife Amy Poehler last year, and in April, he admitted he was not yet ready to start dating again as he was still coming to terms with the end of his nine-year marriage.

He told Details magazine, “I’m not officially dating. I don’t really know what to do. Do you put an announcement in the trades (papers)? I’m dating! It all seems very scary to me, to be honest. So I’m kind of keeping pretty close counsel right now.”

(Photo by Kevin Mazur/Getty Images for Baby Buggy)

However, it appears Arnett has since had a change of heart and he began a relationship with celebrity chef Lee this summer, according to Eonline.com.

Lee was married to the legendary rocker for five years before parting ways in 2009.

Arnett isn’t the only one moving on – Poehler is now dating fellow funny man Nick Kroll.

Actor Will Arnett became an obsessive gym rat after his split from wife Amy Poehler in a bid to cope with the breakdown of their nine-year marriage. The actors, who are parents to young sons Archie …

Will Arnett and one of his sons attend the New Jersey Devils vs The New York Rangers on April 21. (James Devaney/FilmMagic)

Actor Will Arnett became an obsessive gym rat after his split from wife Amy Poehler in a bid to cope with the breakdown of their nine-year marriage.

The actors, who are parents to young sons Archie and Abel, separated in September, and the “Arrested Development” star reveals he distracted himself from the pain by engaging in intense workouts.

Arnett, who has been sober since kicking his alcohol habit in 1999, tells Details magazine, “If going to the gym obsessively for eight, nine months was my way of dealing, then let that be my worst problem. Life is challenging… All people have been doing since the dawn of time is trying to figure out how to live this life and be happy. I’m no different. I’m 43, and I’ve found my happiness – which is my kids.”

‘Parks and Recreation” star Poehler has reportedly moved on from her estranged husband by romancing comedian Nick Kroll, but Arnett admits he not yet ready to begin dating again.

He adds, “I’m not officially dating. I don’t really know what to do. Do you put an announcement in the trades? I’m dating! It all seems very scary to me, to be honest. So I’m kind of keeping pretty close counsel right now.”

Jason Merritt/Getty Images Ricky Gervais is backing “Arrested Development” star Will Arnett to be the new boss on “The Office” after Steve Carrell steps down in May. The actor has played embarrassing …

He writes on his blog, “‘The Office’ is well into syndication in the States (which is why I can say what the f**k I like and annoy people at awards shows… ha ha. Only joking… I’ve always been annoying, I know.) and we’re developing it in a few new countries at the moment too. Still. It’s better than working.

“Had a little meeting with NBC about various things and recommended Will Arnett for a regular in ‘The Office.’ Thoughts? I think he’s amazing.”

Christopher Polk/Getty Images Comedy couple Amy Poehler and Will Arnett are celebrating after welcoming their second son. Poehler, 38, gave birth to the baby boy, Abel James Arnett, on Friday morning. …